Comparison of the Revised and Original Versions of the Bayley Scales of Infant Development
- ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
- Sandra G. Gagnon Ph.D., Associate Professor (Creator)
- Institution
- Appalachian State University (ASU )
- Web Site: https://library.appstate.edu/
Abstract: Differences between Mental Scale scores on the revised Bayley
Scales of Infant Development(BSID-II) and the original test (BSID)
were evaluated. Both versions ofthe measure were administered to 32
subjects, ranging in age from 3 to 28 months, in counterbalanced order.
Inter-test correlations indicated that the two versions of the test were
significantly correlated (r = .76, p < 0.05). Significant differences
between scores on the BSID-II (M = 105.97) and the original BSID
(M = 124.38) were observed (t(31) = 8.41,p < 0.05). Children below the
age of 12 months displayed slightly larger discrepancies than children
above 12 months of age. This discrepancy did, however, appear to
increase significantly with the developmental levels of the children,
with subjects scoring above one standard deviation on the BSID displaying
larger discrepancies than those at or below the normal range.
These findings are important for psychologists, early interventionists
and other professionals involved in the assessment of infants and
toddlers as they interpret scores on the new Bayley Scales. This
information is especially pertinent for children whose performance is
evaluated longitudinally, since they will likely score lower on the new
test than they did on the original Bayley Scales. The lower scores may
lead to subsequent increases in the number of children who qualify for
early intervention and special education services. Therefore, these
findings are also important for those involved in the development and
evaluation of intervention programs for young children. The findings
are considered in terms of their applicability across cultures.
Comparison of the Revised and Original Versions of the Bayley Scales of Infant Development
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Additional Information
- Publication
- Gagnon, S. G., & Nagle, R. J. (2000). Comparison of the revised and original versions of the Bayley Scales of Infant Development. School Psychology International, 21(3): 293-305 (Aug 2000). Published by SAGE (ISSN: 0143-0343). doi:10.1177/0143034300213006
- Language: English
- Date: 2000